VIX is not a perfect representation of U.S. stocks but it's close. When stocks go down (S&P500 specifically), VIX usually goes up. Stocks go up, VIX normally goes down. What is currency beta against VIX? What currencies do best when VIX goes up (usually when stocks are performing poorly)?As you might expect, safe havens and top currencies perform best as investors move to safety and pull back leveraged positions. JPY does best, followed by USD. Procyclical currencies do the worst. These include LatAm FX and commodity currencies like CAD and AUD.